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C1861W-SRST-C-B/K9
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- 1861,WLAN,8-usrSRST/CME,CUE,4FXS,2BRI,8xPOE,SP Svcs,HWICslot
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C1861W-SRST-C-B/K9
1861,WLAN,8-usrSRST/CME,CUE,4FXS,2BRI,8xPOE,SP Svc...
$4,995.00
$2,412.00
5 in Global Warehouse
$2,412.00
52% off
TRUSTED, TRIED, PROVEN
C1861W-SRST-C-B/K9 Overview
C1861W-SRST-C-B/K9 is designed on a fixed modular architecture that integrates robust power options via an AC power supply with redundancy, alongside dedicated WAN and LAN interfaces to support secure connectivity. It delivers integrated services including voice, video, and WAN optimization while offering VPN functionality such as IPSec for reliable remote access.
C1861W-SRST-C-B/K9 also features modular capabilities with an expansion slot for future network enhancements, ensuring high throughput and dependable performance. Its design emphasizes redundancy and built‐in security features, making it well suited for business and small office deployments requiring secure, scalable connectivity.
What is the price of C1861W-SRST-C-B/K9?
Lowest price of C1861W-SRST-C-B/K9 is $ 2,412.00. Shop now! Get further exclusive discounts with bulk quotation on C1861W-SRST-C-B/K9
Explore more options from Routers or explore other Cisco products.
C1861W-SRST-C-B/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec VPN |
| Power Source | AC Power Supply with Redundant Option |
| Routing Protocols | OSPF / EIGRP / RIP / BGP / Static Routing |
| Broadband | N/A |
| Architecture | Fixed |
| WAN Configuration | Dual WAN |
| WAN Ports | 2 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | 802.11n |
| Connectivity Type | Wired / Wireless |
| Network Protocols | IPv4 / IPv6 / TCP/IP |
| Remote Management | Telnet / SSH / SNMP / HTTP/HTTPS |
| Compliance Standards | FCC / CE |
| Wireless Support | Yes |
| Speed/Capacity | Fast Ethernet (100 Mbps) |
| Firewall Features | Yes |
| Features | VPN / VoIP / IPv6 Compatible / Firewall |
| Use Case | Business / Small Business |
| Management | Managed |
| Form Factor | Desktop |
| Integrated Services | Voice / Video / WAN Optimization |
| High Availability Support | Supported |
| Safety | UL / CE |
| EMC | FCC |
| Telecom | N/A |
| Throughput Capacity | 0.075 Gbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection |
| Expansion Slots | EHWIC |
| Modular Slots Available | 1 Slot |
| Stacking Capability | No |
| 5G Support | No |
| Memory | 256 MB |
| Flash Memory | 256 MB |
| Interface Ports | RJ-45 / Combo Ports |
| Power | 50W |
| Device Type | Router |
| Product Name | Cisco 1861W Integrated Services Router with SRST |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
C1861W-SRST-C-B/K9 Use Case
Branch Office Converged Network with Secure Wireless & PoE-Powered Devices
In a small-to-midsize branch deployment, the Cisco C1861W-SRST-C-B/K9 delivers integrated 802.11n WLAN, eight PoE ports and four FXS voice interfaces in one platform. This use case unifies secure wireless access, IP telephony and PoE-powered security cameras over a single router, reducing capital and operational expenses. Outcome: simplified network roll-out, centralized power management for IP endpoints and hardened Wi-Fi security for branch employees and guests.
Always-On Voice Resiliency with SRST and CME for Remote Offices
Enterprises with distributed sites leverage the C1861W’s SRST/CME feature to maintain local call processing during MPLS or Internet outages. Supporting up to eight SRST/CME users and two BRI trunks, the router ensures uninterrupted voice communications when the primary call manager is unreachable. Outcome: guaranteed business-continuity, zero toll fraud during outages and improved end-user productivity through continuous dial-tone availability.
Service Provider Managed Voice & WAN Services with Scalable HWIC Expansion
Service providers deploy the C1861W-SRST-C-B/K9 with SP Services image and an available HWIC slot to offer tailored voice, data and security solutions for SMB customers. With modular support for VLANs, MPLS VPN, two BRI circuits and four FXS ports, providers can integrate legacy PBX lines while delivering secure, multi-tenant Ethernet and Wi-Fi services. Outcome: rapid service provisioning, higher ARPU through value-added voice/data bundles and flexible future upgrades via HWIC modules.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC, CE, UL | IEEE 802.3, IEEE 802.3u | FCC / CE | FCC / CE | FCC, CE |
| Connectivity Type | Wired / Wireless | Wired | Wired | Wired / Wireless | Wired / Wireless |
| Depth | N/A | N/A | 14 in | N/A | 11.0 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | NIM | EHWIC | NIM | EHWIC | EHWIC |
| Features | VPN, Firewall, Integrated Services, IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN / Voice / Firewall / IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall / VoIP |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 128 MB | 256 MB | 128 MB |
| Form Factor | Desktop | Rack-mount | Rack-mount | Desktop | Desktop |
| Height | N/A | N/A | 1.75 in | N/A | 1.73 inches |
| High Availability Support | Supported | Not Supported | Not Supported | Supported | Not Supported |
| Integrated Services | Voice, Video | Voice | Voice / Video | Voice / Video / WAN Optimization | Voice |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 / Combo Ports | RJ-45 |
| LAN Ports | 4 LAN Ports | N/A | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 128 MB | 256 MB | 256 MB | 512 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 1 Slot | 1 Slot |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6, MPLS | IPv4 / IPv6 | IPv4 / IPv6 / TCP/IP | IPv4, IPv6 |
| Power | 40W | 73 W | 48 W | 50W | 35W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply with Redundant Option | AC Power Supply |
| Product Name | Cisco 1861 Wireless Services Router | Cisco 1841-3G-G | Cisco 1801 Integrated Services Router | Cisco 1861W Integrated Services Router with SRST | CISCO1812W-AG-C/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | Telnet, SSH, SNMP | CLI / SSH / Telnet / SNMP | Telnet / SSH / SNMP / HTTP/HTTPS | Telnet/SSH/SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP / Static Routing | OSPF / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL / CE | N/A |
| Speed/Capacity | Gigabit | N/A | Gigabit | Fast Ethernet (100 Mbps) | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.085 Gbps | 0.045 Gbps | 0.075 | 0.075 Gbps | 0.025 Gbps |
| Use Case | Business / Small Business | Small Business | Enterprise | Business / Small Business | Business |
| VPN Support | IPSec / SSL VPN / DMVPN / GRE | IPSec | IPSec / SSL VPN | IPSec VPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | N/A | N/A | 12 lbs | N/A | 9.1 lbs |
| Wi-Fi Standard | WiFi 4 | N/A | N/A | 802.11n | WiFi 4 |
| Width | N/A | N/A | 17 in | N/A | 17.0 inches |
| Wireless Support | Yes | No | No | Yes | Yes |
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Questions & Answers
Q
What is the Cisco C1861W-SRST-C-B/K9 router?
A
The Cisco C1861W-SRST-C-B/K9 is an Integrated Services Router (ISR 1861) with embedded WLAN, 8-user SRST/CME, Cisco Unity Express, 4 FXS, 2 BRI, 8x PoE, service provider services and an HWIC slot for modular expansion.
Q
How many PoE ports does the C1861W-SRST-C-B/K9 support?
A
The Cisco 1861 router provides eight 10/100 PoE ports, each delivering up to 15.4 W to power IP phones, access points and other PoE devices.
Q
Does the Cisco 1861 ISR include wireless LAN capabilities?
A
Yes. The C1861W-SRST-C-B/K9 features an integrated 802.11a/b/g/n access point to deliver secure Wi-Fi connectivity out of the box.
Q
What voice survivability features are available on the C1861W-SRST-C-B/K9?
A
This router supports Cisco Unified Survivable Remote Site Telephony (SRST) for up to 8 users and Cisco Unified Communications Manager Express (CME) for local call processing during WAN outages.
Q
Can I deploy Cisco Unity Express on the ISR 1861?
A
Yes. The C1861W-SRST-C-B/K9 includes Cisco Unity Express (CUE) for integrated voicemail, auto-attendant and unified messaging services.
Q
What WAN interface options does the C1861W-SRST-C-B/K9 offer?
A
The router provides four FXS ports, two BRI ports and a single HWIC slot for additional serial, T1/E1 or DSL WAN modules.
Q
How many FXS and BRI ports are built into the ISR 1861?
A
The Cisco 1861 ISR includes 4 FXS ports for analog endpoints and 2 BRI ports for ISDN connectivity, enabling versatile voice and data links.
Q
Is the Cisco 1861 router expandable?
A
Yes. It features one High-Speed WAN Interface Card (HWIC) slot and supports Cisco Network Interface Modules (NIMs) for future connectivity upgrades.
Q
Which service provider services does the C1861W-SRST-C-B/K9 support?
A
The router supports MPLS, PPPoE, Metro Ethernet, IPv4/IPv6 routing and Quality of Service (QoS) for managed service provider deployments.
Q
What is the throughput performance of the Cisco 1861 ISR?
A
The C1861W-SRST-C-B/K9 delivers up to 50 Mbps of aggregated data throughput, suitable for small to medium branch offices.
Q
Does the Cisco C1861W-SRST-C-B/K9 support VPN services?
A
Yes. It offers integrated IPsec VPN, GRE tunneling and SSL VPN for secure site-to-site and remote access connectivity.
Q
What are the physical dimensions and operating conditions?
A
The ISR 1861 measures 3.5″×13.5″×11.8″, weighs 8.4 lbs, and operates from 32°F to 104°F with 10–90% non-condensing humidity.
Q
What is the power consumption of the Cisco 1861 router?
A
Under full PoE load, the C1861W-SRST-C-B/K9 consumes approximately 120 W; typical idle power draw is 45 W.
Q
How is licensing managed on the C1861W-SRST-C-B/K9?
A
Licensing is delivered via Cisco’s Right-to-Use (RTU) model with Smart Licensing for universal device activation of advanced features.
Q
What deployment scenarios are ideal for the ISR 1861?
A
The Cisco 1861 is ideal for small to medium branch offices, retail locations, and remote sites requiring integrated security, voice and WLAN.
Q
What warranty and support options are available?
A
The C1861W-SRST-C-B/K9 includes a limited lifetime hardware warranty and offers optional Cisco Smart Net Total Care with 24/7 technical support.
